AT-273TR [TE]
Digital Attenuator, 32 dB, 2-Bit, TTL Driver, DC - 2.0 GHz; 数字衰减32分贝， 2位， TTL驱动器， DC - 2.0 GHz的
| 型号： | AT-273TR |
| 厂家： | 
TE CONNECTIVITY |
| 描述： | Digital Attenuator, 32 dB, 2-Bit, TTL Driver, DC - 2.0 GHz |
| 文件： | 总2页 (文件大小：209K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Digital Attenuator, 32 dB, 2-Bit,
TTL Driver, DC - 2.0 GHz
V 7.00
Features
CR-11
n
n
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n
n
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Attenuation: 16.0 dB Steps to 32 dB
Low DC Power Consumption
Hermetic Surface Mount Package
Integral TTL Driver
50 ohm Impedance
Temperature Stability: ±0.18 dB from -55°C to +85°C
Typ.
n
Tape and Reel Packaging Available
Description
M/A-COM's AT-273 is a GaAs FET digital attenuator
with a 16.0 dB minimum step size and a 32 dB total
attenuation range. This attenuator and integral TTL driver
is in a hermetically sealed ceramic 16-lead surface mount
package. The AT-273 is ideally suited for use where
accuracy, fast switching, very low power consumption
and low intermodulation products are required. Typical
applications include dynamic range setting in precision
receiver circuits and other gain/leveling control circuits.
Environmental screening is available. Contact the factory
for information.
Electrical Specifications: TA = 25°C
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
Insertion Loss
—
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
dB
dB
dB
—
—
—
—
—
—
1.6
1.7
1.9
Attenuation Accuracy
C1 Bit
DC - 2.0 GHz
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
± 3% of attenuation setting in dB
± 3% of attenuation setting in dB
± 3% of attenuation setting in dB, -1 dB
± 3% of attenuation setting in dB, -3 dB
Full Attenuation (32 dB)
Full Attenuation (32 dB)
Full Attenuation (32 dB)
VSWR
Trise, Tfall
Full Range
10% to 90%
DC - 2.0 GHz
Ratio
ns
—
—
—
—
—
7
1.6:1
—
—
—
—
Ton, Toff
50% Cntl to 90% / 10% RF
In-Band (peak-to-peak)
ns
28
30
—
Transients
mV
—
1 dB Compression
Input Power
Input Power
0.05 GHz
0.5 - 2.0 GHz
dBm
dBm
—
—
+20
+28
—
—
Input IP3
Input IP2
Two-tone inputs up to +5 dBm
0.05 GHz
0.5 - 2.0 GHz
dBm
dBm
—
—
+38
+48
—
—
Two-tone inputs up to +5 dBm
0.05 GHz
0.5 - 2.0 GHz
dBm
dBm
—
—
+44
+68
—
—
Vcc
-Vee
—
—
—
—
V
V
4.5
-8.0
5.0
—
5.5
-5.0
Vctl
Vctl
Logic (0) TTL
Logic (1) TTL
—
—
V
V
0.0
2.0
—
—
0.8
5.0
Digital Attenuator, 32 dB, 2-Bit, TTL Driver, DC - 2.0 GHz
Electrical Specifications: TA = 25°C
AT-273
V 7.00
Parameter
Test Conditions
Frequency
Units
Min
Typ
Max
Input Leakage Current (Low)
Input Leakage Current (High)
0 to 0.8V
2.0 to 5.0V
—
—
µA
µA
—
—
—
—
1.0
1.0
Icc
Vcc = 4.5 to 5.5V
—
mA
—
—
2.0
Vctl = 0 to 0.8V, or Vcc –2.1V to Vcc
-Iee
Vee = -5.0 to -8.0V
—
mA
—
—
-1
Absolute Maximum Ratings 1
Pin Configuration
Parameter
Absolute Maximum
Pin No.
Function
Pin No.
Function
Max. Input Power
0.05 GHz
1
2
3
4
5
C2
9
RF1
GND
GND
GND
Vee
+27 dBm
+34 dBm
0.5 - 2.0 GHz
GND
C1
10
11
12
13
+Vcc
+5.5V
-Vee
-8.5V
GND
GND
Control Voltage
Operating Temperature
Storage Temperature
-0.5 to Vcc + 0.5V
-55°C to +125°C
-65°C to +150°C
6
7
8
GND
GND
RF2
14
15
16
Vcc
NC
NC
1. Operation of this device above any one of these
parameters may cause permanent damage.
Truth Table
Ordering Information
C1
0
C2
Attenuation
Part Number
Package
0
1
1
Loss, Reference
16.0 dB
AT-273
Bulk Packaging
0
AT-273TR
Tape and Reel
1
32.0 dB
0 = TTL Low; 1 = TTL High
2
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
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